Abstract: The present invention relates to a process of controlling crystal form of Alite in Portland cement clinker, wherein the said Portland cement clinker is thermally treated in order to change the crystal form of Alite in Portland cement clinker, so as to improve performance of resulting Portland cement clinker. The said process of present invention is easy and feasible.
Type:
Grant
Filed:
July 15, 2010
Date of Patent:
September 10, 2013
Assignee:
Nanjing University of Technology
Inventors:
Xiaodong Shen, Suhua Ma, Xuerun Li, Lin Chen, Weiqiang Zhou, Song Deng
Abstract: The present invention relates to a process of controlling crystal form of Alite in Portland cement clinker, wherein the said Portland cement clinker is thermally treated in order to change the crystal form of Alite in Portland cement clinker, so as to improve performance of resulting Portland cement clinker. The said process of present invention is easy and feasible.
Type:
Application
Filed:
July 15, 2010
Publication date:
September 5, 2013
Applicant:
Nanjing University of Technology
Inventors:
Xiaodong Shen, Suhua Ma, Xuerun Li, Lin Chen, Weiqiang Zhou, Song Deng
Abstract: The present invention describes a process for manufacture of high iron hydraulic cement clinker in production of cement and cementation binder for application in construction activity and in metallurgical industry for sintering of iron ore fines and making cold bonded briquettes and pellets. The process is cost effective and flexible for utilization of wide varieties of raw material consisting of lime and iron in production of high iron cements for different applications.
Type:
Grant
Filed:
March 28, 2002
Date of Patent:
June 22, 2004
Assignee:
Council of Scientific and Industrial Research
Abstract: Portland cement particles having the characteristics of slow hardening is oduced by a process of heat treating portland cement particles in the temperature range from 1500.degree. to 3000.degree. C. for from 0.5 to 10 seconds and cooling to obtain particles containing an amorphous, glassy shell as an outside layer.
Type:
Grant
Filed:
August 23, 1995
Date of Patent:
April 29, 1997
Assignee:
The United States of America as represented by the Secretary of the Army
Inventors:
Jerry P. Burkes, Clifford E. Grey, Jr., Philip G. Malone, Toy S. Poole, Charles A. Weiss, Jr.